ASTM_D_3307_-_21.pdf

Designation:D330721Standard Specification forPerfluoroalkoxy(PFA)Resin Molding and ExtrusionMaterials1This standard is issued under the fixed designation D3307;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification covers melt processable molding andextrusion materials of Perfluoroalkoxy(PFA)resin.The mate-rials are copolymers of tetrafluoroethylene and perfluoro-alkoxy.1.2 This specification is intended to provide a means forcalling out plastic materials used in the fabrication of end itemsor parts.It is not intended for the selection of materials.Material selection should be made by those having expertise inthe plastics field after careful consideration of the design andthe performance required of the part,the environment to whichit will be exposed,the fabrication process to be employed,thecosts involved,and the inherent properties of the material otherthan those covered by this specification.1.3 This specification does not cover recycled plastics.1.4 The values stated in SI units2are to be regarded asstandard.The values given in parentheses are for informationonly.1.5 The following precautionary caveat pertains only to thetest methods portions,Sections 8 and 9 of this specification:This standard does not purport to address all of the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety,health,and environmental practices and determine the appli-cability of regulatory limitations prior to use.NOTE1This specification,ISO 20568-1,and ISO 20568-2 differ inapproach or detail.Data obtained using either may not be technicallyequivalent.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD883 Terminology Relating to PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1708 Test Method for Tensile Properties of Plastics by Useof Microtensile SpecimensD3892 Practice for Packaging/Packing of PlasticsD4591 Test Method for Determining Temperatures andHeats of Transitions of Fluoropolymers by DifferentialScanning CalorimetryE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System2.2 ISO Standards:4ISO 20568-1 PlasticsFluoropolymer Dispersions andMoulding and Extrusion MaterialsPart 1ISO 20568-2 PlasticsFluoropolymer Dispersions andMoulding and Extrusion MaterialsPart 23.Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nologies D883 and D1600.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials(Section D20.15.12).Current edition approved Sept.1,2021.Published September 2021.Originallyapproved in 1974.Last previous edition approved in 2016 as D3307 16.DOI:10.1520/D3307-21.2As defined in IEEE/ASTM SI-10.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.13.1.1 lot,none production run or a uniform blend of twoor more productions runs.4.Classification4.1 This specification covers 18 types of PFA-fluorocarbonresins supplied in pellet form classified according to theirmelting points.The r